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Marta_Voda [28]
3 years ago
10

I NEED HELP QUICK PLEASE

Mathematics
1 answer:
harina [27]3 years ago
8 0
I’m pretty sure it’s the first one
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The perimeter of a right angled triangle is 30cm and its area is 30cm square then find the side of triangle
wariber [46]

Perimeter = a + b + c = 30

Area = 1/2 x a x b = 30

Multiples of 30: 2, 3, 5, 6, 10, 12, 15

For perimeter c = 30- (a+b)

C= sqrt( a^2 + b^2)

Using the possible combinations of the above:

5 and 12:

C = sqrt(5^2 + 12^2) = 13

5 + 12 + 13 = 30 for the perimeter

Area = 1/2 x 5 x 12 = 30

The sides are 5, 12 and 13 cm

7 0
4 years ago
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F(x)= -1/3x+13 when value is f(-3)
almond37 [142]

Answer:

14

Step-by-step explanation:

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f(-3)=3/3+13

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4 0
2 years ago
-2(x+6)+3= -11x+4(x+4)
Katarina [22]
Distribute 
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-2x-12+3
-2x-12+3=-11x+4(x+4)
Distribute 
4(x+4)
4x+16
-2x-12+3=-11x+4x+16
Combine Numbers && Variables 
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Add The 7 Over To The -2x 
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Add 9 Over To 16 
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x=5 
So 5 Is Your Answer

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3 years ago
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liubo4ka [24]

Answer:

46

Step-by-step explanation:

89

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4 years ago
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